Quantifying the Impact of Algae Supplement on Blood Pressure: Systematic Review and Meta-Analysis of Randomized Controlled Trials Publisher Pubmed

Summary: A review of 10 studies suggests algae supplements may slightly lower diastolic blood pressure, though more research is needed. #HeartHealth #NutritionResearch

Ayatollahi SA^{1, 2} ; Asgary S³ ; Ghanbari F^{4, 5} ; Karimi R^{6, 7} ; Kobarfard F^{1, 8, 9} ; Sarfaraz S¹⁰ ; Nazim U¹¹ ; Mohammadi Pour P¹
Source: Current Problems in Cardiology Published:2022

Abstract

The impact of Algae supplements and its extract on blood pressure has not concluded yet. The aim of this systematic review meta-analysis is to evaluate the antihypertensive activity of this group marine organism on human. Alga was used in some studies as capsules (from 500-mg to 8-g) and the follow-up duration changed from 17 days to 9 months. The difference in standardized mean and its corresponding 95% confidence interval (CI) was applied as the effect size of algae supplementation on systolic and diastolic blood pressure. Based on the results, a meta-analysis of 10 studies with baseline effect control demonstrated that there was no difference in the mean systolic blood pressure in the 2 groups SMD (95%CI): -1.05 (-2.85,0.76), but a significant difference in the mean diastolic blood pressure was observed and showed that the mean diastolic blood pressure in the treatment group was lower than the control group SMD(95%CI): -2.23 (-4.35,-0.11). A meta-analysis of 4 studies with no baseline control effect did not show significant results on both blood pressure. The evidence to support this systematic review meta-analysis requires more investigation and future large scale RCT clinical trial to confirm the results. © 2022 Elsevier Inc.